Metal sash-joint.



UNITED sTA'ras FATE OFFIQEQ WILLIAM ROPEB, F PHILADELPHIA, PENNSYLVANIA,ASSIGNGE OF ONE-HALF TO HENRY N. BENTON, OF PHILADELPHIA, PENNSYLVANIA.

METAL SASH-JOINT.

Specification of Letters Patent. Patented Janjgg 1917.

Application filed. March 14, 1916. Serial No. s oes.

To all whom it may'concern:

Be it known that 1, WILLIAM ROPER, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements in MetalSash-Joints, of which the following is a specification.

My invention relates to improvements in metal sash joints, the object ofthe invention being to provide an improved metal joint designed for usein connection with double and single glazed sash-in which the metal barsor muntins are rigidly secured together, and provide smooth faces to thejoint and both sides of the sash.

A further object is to provide a sash oint of the character describedwhich is extremely strong and durable, and which is neat and attractivein appearance.

With these and other objects in View, the invention consists in certainnovel features of construction and combinations and arrangements ofparts as will be more fully hereinafter described and pointed out in theclaim.

In the accompanying drawings: Figure 1 is an enlarged plan view. of myimproved joint. Fig. 2 is a view in section on the line 77 of Fig. 1.Fig. 3 is a fragmentary View in elevation of one muntin, showing thesame in position to receive the other muntin, the latter being indicatedin dotted lines. Fig. 4 is an edge view of Fig. 3. Fig. 5 is afragmentary view in elevation of the other muntin, and Fig. 6 is an edgeview of Fig. 5.

6 and 7 represent the two muntins, both of which are of general crossshape. In other words, the muntin 6 is provided at its center withoppositely projecting flanges 8, and the muntin 7 is provided withsimilar flanges 9, so that both muntins are cross shape with theirflanges projecting at right angles to their web portion.

The muntin 6 has its flanged portions 8 cut away as shown at a distanceequal to the width of muntin 7 at its flanges, so that the flanges 9 ofthe muntin 7 will rest in the cut out portion 10 and in alinement withthe flanges 8 of muntin 6. Muntin 6 has a notch 11 in its web portionextending from the cut out portion 10 the proper distance.

Two tongues 12, 12, are formed of the web portion of muntin 6 byparallel slits 13 extending longitudinally of the muntin, and

one of said slits out along the line of juncture of the flange 8 withthe web of the muntin. These tongues 12 are adapted to be bent laterallyto admit the other muntin 7 as shown in dotted lines in Fig. 3, and aslot 14 is provided in the web of muntin 6, which extends from the outerslit 13 to the edge of the muntin.

Muntin 7 is provided with a notch 15 in one edge of its web, and thisnotch 15 is of a length equal to the distance from the end of notch 11in muntin 6 to'the edge of the web of said muntin.

In assembling the joint, the tongues 12 are bent or curved laterally asshown clearly in Fig. 4, and then muntin 7 is positioned as shown indotted lines in Fig. 3, and moved longitudinally until the notch 15 inmuntin 7 registers with the. web with muntin 6, when muntin 7 can bemoved laterally, and during such movement the notch 15 of muntin 7 willstraddle the web of muntin 6 and the notch 11 of muntin 6 will straddlethe web of muntin 7, so that the outer edges of the muntins will beflush with each other. I/Vhen the muntins are thus positioned, thetongues 12 are bent back into alinement with the web of the muntin, andthe two muntins will be securely joined without possibility ofaccidental displacement.

Various slight changes might be made in the general form and arrangementof parts described without departing from my invention, and hence I donot limit myself to the precise details set forth, but consider myselfat liberty to make such changes and alterations as fairly fall withinthe spirit and scope of the appended claim.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

A metal sash joint comprising two interlocking muntins cross shape intransverse section, each muntin having crossed flat webs, one of saidmuntins having a slot extending transversely from one edge partwaythrough one of its webs, said slot having an extension at an angle tothe general direction thereof and cutting away a part of 'its other web,said first slotted web being slit to provide tongues laterallybendableto provide additional space intermediate said slot extension andsaid edge, the other of said muntins having crossed flat webs movableinto said slot when the tongues are laterally bent, said latter muntinhaving a when the tongues are again bent into their notch in one edge ofone of its Webs for innormal position, substantially as described.terlocking with the edge portion of the first- In testimony whereof Ihave signed my mentioned Web of the slotted muntin which name to thisspecification in the presence of 5 is remote from the filSt-IHGIltlOIFEdedge ocf1 two subscribing Witnesses.

the first muntin the other Web 0 the secon muntin being inovable intothe slot in the WVILLIAM ROPER' seeoncl-mentioned Web of thefirst-mentioned \Vitnesses: Innntin the other Web of the second muntinCHAS. E. Form,

10 filling the remaining portion of the slot RHODA E. GILLIES.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents. Washington, D. C."

